The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 31, 2023
Filed:
Apr. 03, 2020
Applicant:
Arxada Ag, Visp, CH;
Inventors:
Masaki Nakajima, Basel, CH;
Anja Bierstedt, Visp, CH;
Leo Schmid, Ried-Brig, CH;
Maximilian Kuehnle, Rheinfelden, CH;
Ulrich Mayerhoeffer, Visp, CH;
Ellen Klegraf, Naters, CH;
Assignee:
ARXADA AG, Visp, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 67/46 (2006.01); C07C 69/72 (2006.01);
U.S. Cl.
CPC ...
C07C 67/46 (2013.01); C07C 69/72 (2013.01);
Abstract
The invention discloses a method for preparation of an acetoacetylated polyol by reaction of a polyol with deketene in the presence of a base and in the absence of a solvent.
Nakajima, Masaki. (2023). Method for preparation of acetoacetylated polyols (U.S. Patent No. 11802104). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11802104
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile